/**********
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)

This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
more details.

You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
**********/
// "liveMedia"
// Copyright (c) 1996-2018 Live Networks, Inc.  All rights reserved.
// Framed Filters
// C++ header

#ifndef _FRAMED_FILTER_HH
#define _FRAMED_FILTER_HH

#ifndef _FRAMED_SOURCE_HH

#include "FramedSource.hh"

#endif

class FramedFilter : public FramedSource {
public:
    FramedSource *inputSource() const { return fInputSource; }

    void reassignInputSource(FramedSource *newInputSource) { fInputSource = newInputSource; }

    // Call before destruction if you want to prevent the destructor from closing the input source
    void detachInputSource();

protected:
    FramedFilter(UsageEnvironment &env, FramedSource *inputSource);

    // abstract base class
    virtual ~FramedFilter();

protected:
    // Redefined virtual functions (with default 'null' implementations):
    virtual char const *MIMEtype() const;

    virtual void getAttributes() const;

    virtual void doStopGettingFrames();

protected:
    FramedSource *fInputSource;
};

#endif
